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Electrical signal, e.g. when you touch something hot, an electrical signal goes from your hand to your brain to tell you to pull your hand away. How do you know it's electrical? Because it's so fast!
The answer to this question will be explained during the interview session
Higher pressure in the left ventricle (thicker wall, more contractile power) means that blood will cross from the left side of the heart to the right. This means that not as much oxygenated blood will be ...
For this question, we have to integrate x2 multiplied by sin(x). For integrating a product, you must use a method called integration by parts. Without bogging ourselv...
The force of gravity decreases very rapidly with distance, since force is inversely proportional to distance2 . The Sun is much further away from the Moon than the Earth, so its gravitational a...
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